申请人:DOW SILICONES CORPORATION
公开号:US10774217B2
公开(公告)日:2020-09-15
An (A) additive organopolysiloxane composition is disclosed which comprises (A1) a branched organopolysiloxane polymer comprising M, D and Q siloxy units and (A2) a silicone resin. The (A) additive organopolysiloxane composition has a content of aliphatically unsaturated groups of from 1.5 to 7.0 wt. %. A curable composition is also disclosed, the curable composition comprising the (A) additive organopolysiloxane composition, (B) an organosilicon compound having at least two silicon-bonded hydrogen atoms per molecule, and (C) a hydrosilylation catalyst. A method of preparing the curable and a method of forming a film with the curable composition are also disclosed.
公开了一种 (A) 添加剂有机聚硅氧烷组合物,它包括 (A1) 由 M、D 和 Q 硅氧单元组成的支化有机聚硅氧烷聚合物和 (A2) 硅树脂。(A)添加剂有机聚硅氧烷组合物中脂肪族不饱和基团的含量为 1.5 至 7.0 wt.%。还公开了一种可固化组合物,该可固化组合物包含(A)添加剂有机聚硅氧烷组合物、(B)有机硅化合物(每个分子至少有两个硅键合氢原子)和(C)氢化硅催化剂。此外,还公开了制备固化物的方法和用固化物组合物形成薄膜的方法。